Print Email Facebook Twitter Revealing an Interconnected Interfacial Layer in Solid-State Polymer Sodium Batteries Title Revealing an Interconnected Interfacial Layer in Solid-State Polymer Sodium Batteries Author Zhao, Chenglong (Chinese Academy of Sciences; University of Chinese Academy of Sciences) Liu, Lilu (Chinese Academy of Sciences; University of Chinese Academy of Sciences) Lu, Yaxiang (Chinese Academy of Sciences; University of Chinese Academy of Sciences) Wagemaker, M. (TU Delft RST/Storage of Electrochemical Energy) Chen, Liquan (Chinese Academy of Sciences) Hu, Yong Sheng (Chinese Academy of Sciences; University of Chinese Academy of Sciences; Yangtze River Delta Physics Research Center, Liyang) Date 2019 Abstract Replacing the commonly used nonaqueous liquid electrolytes in rechargeable sodium batteries with polymer solid electrolytes is expected to provide new opportunities to develop safer batteries with higher energy densities. However, this poses challenges related to the interface between the Na-metal anode and polymer electrolytes. Driven by systematically investigating the interface properties, an improved interface is established between a composite Na/C metal anode and electrolyte. The observed chemical bonding between carbon matrix of anode with solid polymer electrolyte, prevents delamination, and leads to more homogeneous plating and stripping, which reduces/suppresses dendrite formation. Full solid-state polymer Na-metal batteries, using a high mass loaded Na3V2(PO4)3 cathode, exhibit ultrahigh capacity retention of more than 92 % after 2 000 cycles and over 80 % after 5 000 cycles, as well as the outstanding rate capability. Subject composite metal anodesinterfacial layerssodium batteriessolid polymer electrolytesstable cycling To reference this document use: http://resolver.tudelft.nl/uuid:5ce32d42-9663-4a06-81da-66f70c8ef8aa DOI https://doi.org/10.1002/anie.201909877 Embargo date 2020-09-25 ISSN 1433-7851 Source Angewandte Chemie (International Edition), 58 (47), 17026-17032 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2019 Chenglong Zhao, Lilu Liu, Yaxiang Lu, M. Wagemaker, Liquan Chen, Yong Sheng Hu Files PDF Manuscript_Final.pdf 2.18 MB Close viewer /islandora/object/uuid:5ce32d42-9663-4a06-81da-66f70c8ef8aa/datastream/OBJ/view